Home / 129,823.20-194,807.70-54,930.60

Finding the Fourth Proportional to 129,823.20, 194,807.70 and 54,930.60

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Solution

The fourth proportional to 129,823.20, 194,807.70 and 54,930.60 is: 82,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,823.20 : 194,807.70 = 54,930.60 : x
  2. Step 2: Convert to fraction form
    129,823.20/194,807.70 = 54,930.60/x
  3. Step 3: Cross multiply
    129,823.20x = 194,807.70 × 54,930.60
  4. Step 4: Simplify right side
    129,823.20x = 10,700,903,845.62
  5. Step 5: Solve for x
    x = 10,700,903,845.62/129,823.20
  6. Step 6: Final answer
    x = 82,426.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.